کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7842598 | 1506512 | 2018 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Entropy generation minimization and binary chemical reaction with Arrhenius activation energy in MHD radiative flow of nanomaterial
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Our aim here is to investigate the MHD radiative nanomaterial flow of Casson fluid towards a stretched surface. Heat transport mechanism is examined through thermal radiation and heat source/sink. Entropy generation is explored as a function of concentration, temperature and velocity. Total entropy generation rate is inspected for various flow parameters. Impacts of Brownian movement and thermophoresis on entropy generation have been also scrutinized. Nanofluid model with Brownian motion and thermophoresis mechanisms are analyzed. Additionally, activation energy and chemical reaction are also implemented. Governing flow expressions consist of momentum, energy and concentration of nanoparticles. Appropriate similarity transformations are utilized to convert the flow expressions to ordinary ones. The obtaining coupled nonlinear differential equations have been tackled with the help of BPV4c. Attention is particularly given to the entropy generation and Bejan number. The graphical outcomes are discussed for velocity, concentration, temperature, entropy generation and Bejan number. From graphical outcomes, it is examined that velocity and temperature fields show contrast behavior for higher magnetic variable. It is found that radiative variable increases the effective thermal diffusivity and temperature enhances. To our knowledge the flow of nanomaterial with entropy generation minimization and activation energy is just investigated in this paper.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 259, 1 June 2018, Pages 274-283
Journal: Journal of Molecular Liquids - Volume 259, 1 June 2018, Pages 274-283
نویسندگان
Muhammad Ijaz Khan, Sumaira Qayyum, Tasawar Hayat, Muhammad Waqas, Muhammad Imran Khan, Ahmed Alsaedi,